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/* vim:set et ts=4 sts=4:
*
* ibus-libpinyin - Intelligent Pinyin engine based on libpinyin for IBus
*
* Copyright (c) 2021 Peng Wu <alexepico@gmail.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __PY_ENGLISH_DATABASE_
#define __PY_ENGLISH_DATABASE_
#include <sqlite3.h>
#include <vector>
#include <memory>
#include "PYString.h"
namespace PY{
class EnglishDatabase{
public:
static void init ();
static EnglishDatabase & instance (void) { return *m_instance; }
public:
EnglishDatabase();
~EnglishDatabase();
gboolean isDatabaseExisted(const char *filename);
gboolean createDatabase(const char *filename);
gboolean openDatabase(const char *system_db, const char *user_db);
gboolean hasWord(const char *word);
gboolean listWords(const char *prefix, std::vector<std::string> & words);
gboolean getUserWordInfo(const char *word, float & freq);
gboolean insertUserWord(const char *word, float freq);
gboolean updateUserWord(const char *word, float freq);
gboolean deleteUserWord(const char *word);
gboolean train(const char *word, float delta);
private:
gboolean executeSQL(sqlite3 *sqlite);
gboolean loadUserDB (void);
gboolean saveUserDB (void);
void modified (void);
static gboolean timeoutCallback (gpointer data);
private:
sqlite3 *m_sqlite;
String m_sql;
gchar *m_user_db;
guint m_timeout_id;
GTimer *m_timer;
private:
static std::unique_ptr<EnglishDatabase> m_instance;
};
};
#endif
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